The saying goes: If you can’t beat ‘em, join ‘em. But in politics, if you can’t join ‘em, buy ‘em. That’s exactly what San Jose City Council candidates Rose Herrera and Johnny Khamis did in a recent slate mailer to boost their public safety cred. But it seems the smartest men in the room are the voter guides’ organizers, who are making a killing selling endorsements up and down the state.